Plan your environment. Realistic sizing, practical budgets.

Use our interactive engineering modeler to estimate firewall capacity, backup storage requirements, and core network uplinks based on your organization's real operational scale.

Model Your Environment →Architecture Review

Infrastructure Capacity Sizing and Budget Planning

Infrastructure Sizing Calculator

Interactive Capacity Estimator

Adjust the operational parameters below to see recommended hardware classes, bandwidth allocations, and storage sizing.

1. Operational Parameters

Active Users (Staff, Students & Devices)250 users

255001,5003,000+

Physical Sites / Connected Buildings2 locations

1 (Single Site)5 Sites10 Sites15+

Production Workloads (Virtual Machines & Servers)20 workloads

330 VMs75 VMs150+ VMs

Engineering Sizing Basis: Sizing models utilize concurrent session counts, typical enterprise traffic profiles (VoIP, video, cloud ERP), and standard 30-day immutable backup retention with daily differential change rates.

Recommended Engineering BaselineEstimated Sizing

Recommended Firewall Class~550 Mbps Peak

FortiGate 100F / 120G (1U Rackmount, Dual Power)

Sized to sustain full IPS, antivirus inspection, and SSL/TLS inspection without choking throughput.

Backup Repository Capacity38 TB Raw

Dedicated Linux Hardened Repository with Immutability

Supports full weekly synthetic backups, daily incrementals, and 30-day ransomware object lock.

Switch Fabric & Uplink Architecture2 Interconnected Sites

Dual 10G SFP+ Redundant LACP Trunks

Ensures non-blocking inter-VLAN routing and fiber aggregation across building distribution switches.